According to Agentforce best practices, action instructions must be highly specific regarding the action's purpose, the expected goal, and the conditions under which it should be triggered. Option D is the strongest set of instructions because it defines the Action (Update shipping address), the Goal (Modify address on a record), and a clear Constraint/Guardrail (Only use when the user explicitly requests it). This prevents the AI from accidentally triggering a data change based on a vague inquiry. Option B is also good but more restrictive than necessary unless the business logic specifically forbids updates during active orders. Option D provides the best balance of context and intent, ensuring the Large Language Model (LLM) understands the
"why" and "when" of the action.